Saturday, October 19, 2013

How succesful versus risky is Laser eye surgery?

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Answer
The risk of any bad happen is very low, about 1 in 5000 and the successful rate is very high. Of course it will also depend on individual factor, how bad your eyesight was before the surgery, how well you follow the instructions post surgery.

I used to be short-sighted, my eyesight was pretty bad, but I had LASIK and now I could see things clearly. My left eye was back to 10/10 after surgery and it has been 9 to 9.5/10, my right eye was even worse before surgery, now its 11/10 and has been this way 7 years after the LASIK. The doc consider my surgery a big success since going from a blind minus 9.00 back to 0 and staying steady is not a result everyone can get.

But it is a safe surgery and personally I say it is worth the thousands that is spent on the procedure.
I recommend it, you shouldnt worry too much, the doc will go through with you step by step before the surgery, and you can choose not to proceed. One of my best friends had it too, 5 years after me and she said it was worth it. My family member doesnt want to because she is afraid of the risk as is my other friend.

Do i have a bad vision for my eyes?




Greenbuggy


i saw my Optometrist yesterday and he said that the degree for both of my eyes were 4.50. I am 19 and in my 2nd year of college. He said that 4.50 is very bad. I have cousins and friends who are only 11 and their degree are already 5.0. So i was wondering is 4.50 for my age is ok or bad.


Answer
'If you are nearsighted (so your prescription is a -4.50 D), you are kind of right in the middle.'

Vitale S, Sperduto RD, Ferris FL 3rd. (2009) Increased prevalence of myopia in the United States between 1971-1972 and 1999-2004. Arch Ophthalmol. 2009 Dec;127(12):1632-9 (ABSTRACT)
A study conducted in the united states showed the rate for myopia in the country in 1971-1972 was 25.0%.
I didn't understand the right in the middle part. You either can go without glasses or you can't. So if life cannot function without glasses then you will be in the same boat as anyone with a prescription of -20.00 or -30.00 (Yes you can read answers given in this site and occasionally get numbers like that mentioned.)

The vast majority of people in your country don't even have a minus number in their prescription. So you're in the minority if classifying yourself in the overall picture.

'Anywhere from -1.00 to -2.50 is fairly minimal, but there are people who are -8.00 to -11.00 which you can imagine is terrible!'
Make your mind up...it either 'doesn't matter' (because vision can always be corrected by glasses) or its 'terrible'. Well you better have some spare cash if you're following the path of 'britter'. You will need to fork out some on expensive laser eye surgery. If her myopia relapses she will face the prospect of further surgery or the purchase of a new pair of glasses.

'So a -4.50 is kind of right in the middle (moderate). That is about what I was at as well at your age, at least before I got LASIK surgery.
I am assuming you are nearsighted like the example above (-4.50) because that is the most common. However, if you are actually farsighted (so your prescription is +4.50) then that is pretty bad. Plus prescriptions aren't as common and thus are worse in the +4.50 range.'

Depends whether the person values their near sight or far sight (to label either as more significant.) I doubt 'britter' values her near vision because with either glasses or laser eye surgery she will always push her pc monitor back or rest books on her lap to create sufficient reading distance (to see clearly). Her choices in life have had the long term effect of undermining her near vision.


'Either way, it doesn't really matter what your prescription is as long as your glasses or contact lenses allow you to see a perfect 20/20.'

Well if this is the case then what was the point in the rest of her answer (if none of it mattered)...
Maybe she isn't aware of medical risks associated with myopia:

Saw SM, Gazzard G, Shih-Yen EC, Chua WH. (2005) Myopia and associated pathological complications. Ophthalmic Physiol Opt. 25(5): 381-91
'Myopic patients have a greater incidence of cataract, with myopia of greater than 6.00 diopters having a greater risk of glaucoma, retinal detachments, chorioretinal atrophy and lacquer cracks. "There is a public health need to prevent the onset or progression of myopia.'

So it really doesn't matter what level your prescription is? Well if it was less than -1.00 then you'd be able to function in life with no restraints.
Buying glasses is not a free option. Some people spend $100s on their glasses each year. That would add up to a loss of 1000s of dollars in a lifetime. If that person takes the contact lens option that would be $20-$30 a month. That's $240-$360 a year and potentially $12000-$18000 during a lifetime (a 50 year period.)
There's the added inconvenience of being 100% dependent on glasses. Break or lose them and you will be virtually blind for 24 hours or more.
Sports may become an impossibility. Also those wearing glasses full time will have blurred vision whenever it rains. (Rain will hit the glasses, obscuring/blocking vision.)

It's also likely that people wearing glasses will develop an unsteady, rushed pace of thought. They learn to deal with any existence of hostility through ignorance and lack any ability to use peripheral vision. This flaw will allow them to be exposed and cause a lack of open awareness of the environment.
Peripheral vision is a basic requirement for the eyes' auto-focusing mechanism. If your peripheral vision is not there and not used then your vision will be unlikely to adjust 100% correctly to any defocus.


'Source(s):
I am an optometry intern.'

didnt help make your answer any more informative or insightful.




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